EP 0466331 A2 19920115 - Motion image difference detecting apparatus.
Title (en)
Motion image difference detecting apparatus.
Title (de)
Vorrichtung zur Detektion von Bewegungsbildunterschied.
Title (fr)
Dispositif de détection de la différence d'image de mouvement.
Publication
Application
Priority
JP 17967490 A 19900709
Abstract (en)
In, for example, a teleconference system, a motion image difference detecting apparatus comprises a first memory (8) for storing first data of a motion image signal corresponding to a first area obtained by dividing the motion image signal, a second memory (12) for storing second data of the motion image signal corresponding to a second area obtained by so dividing the motion image signal, an overlap area of the motion image signal where the first and second areas meet being stored in each of the memories (8, 12), a memory controller (2) for controlling each of the memories (8, 12) so as to store thereinto the image signal of the overlap area, and a detector (6, 10) for detecting a difference between the present frame image and the preceding frame image in the form of block units. <IMAGE>
IPC 1-7
IPC 8 full level
G06G 7/60 (2006.01); G06F 15/18 (2006.01); G06N 3/02 (2006.01); G06N 99/00 (2010.01); G06T 7/20 (2006.01); G11C 11/54 (2006.01); H04N 5/14 (2006.01); H04N 5/907 (2006.01)
CPC (source: EP)
G06T 7/231 (2016.12); H04N 5/145 (2013.01); H04N 5/907 (2013.01); H04N 19/433 (2014.11); H04N 19/436 (2014.11); H04N 19/51 (2014.11); G06T 2207/10016 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0466331 A2 19920115; EP 0466331 A3 19921202; EP 0466331 B1 19970305; DE 69124853 D1 19970410; DE 69124853 T2 19970619; JP H0467259 A 19920303
DOCDB simple family (application)
EP 91305201 A 19910610; DE 69124853 T 19910610; JP 17967490 A 19900709